#!/user/bin/env node

const log = console.log,
      usr = {
        name:'liubangling',
        age:20,
        qq:'2115015457@qq.com'
      };
log('name:\t%s',usr.name);
//log('age:\t%d',usr.age);
//log('qq:\t%j',usr);

log('name:\t',usr.age);
log('user:\t',usr);

console.error('something wrong!');

console.table(usr);
